Final answer:
Bob being 18 years old might impact his ability to get a loan due to lack of credit history, income, collateral, or a co-signer.
Step-by-step explanation:
Bob being 18 years old might impact his ability to get a loan. As a teenager, Bob may not have established credit history or a steady source of income, which are important factors that lenders consider when approving a loan. Additionally, Bob may not have collateral or a co-signer to secure the loan.